This study tested the hypothesis that some MRI-based radiomic features could lose their texture descriptive power below a volume threshold, compromising the robustness of prediction models. The ability of features to discriminate different textures as a function of the tumor volume was investigated on T2-weighted images of a customized pelvic phantom. The images were acquired on three scanners and considered three different textures, from a finer to a coarser one. The texture discriminative ability was shown to depend on tumor volume, with most features losing this property with a VOI smaller than 1 cm3 at 1.5 T.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords